Answer:
I think the answer is c sorry if I'm wrong :(
The correct answer is the suprachiasmatic nucleus of the hypothalamus. The suprachiasmatic nucleus, as the name suggests, is the part of the hypothalamus located in right above above the optic chiasm. The main function of the suprachiasmatic nucleus is mainly responsible for the circadian rhythm of the body therefore the physiological activity on daily cycles.
B - tectonic plates pulling apart.
Answer:
Photosynthesis happens in green plants and certain other organisms, they use the energy of light to convert carbon dioxide and water into the simple sugar glucose. by doing that, photosynthesis provides the basic energy source for basically all organisms. An important byproduct of photosynthesis is oxygen, on which most organisms depend.
Explanation:
basically they use it like we use food and oxygen, it gives them energy and acts as "food" for them by converting it to oxygen which they need :)